检疫性害虫深沟大小蠹入侵风险及防控措施

Intrusion Risk and Control Measure of Dendroctonus murrayanae ,a Quarantine Pest in China

2022年4月,连云港海关在进口美国原木中截获了一种大小蠹,后经专家鉴定为深沟大小蠹Dendroctonus murrayanae,为国内首次截获该有害生物。该小蠹在北美对松属等植物造成严重危害,入侵我国的风险很高,对我国林业生态资源构成严重威胁。国内对该小蠹报道较少。主要介绍了深沟大小蠹的主要鉴定特征、生物学特性、危害传播风险及防控措施等,以期为深沟大小蠹的鉴定与防控提供参考。

One specie of Dendroctonus was identified as Dendroctonus murrayanae by export in imported American logs in April 2022,which was the first time to detect the pest in China.D.murrayanae has caused devastating damage to pine in North America,and has a high risk of invasion into China,which can pose a serious threat to our country.Few researchers have done studies on the bark beetle in China.This paper mainly introduced the identification characteristics,biology,transmission risk and control measures of D.murrayanae,in order to provide some references for further researching and controlling of this pest.